Litharge
A standard material in Glazecalc's library: its oxide analysis, unity contribution and hazards.
What it is
- Kind
- Fluxes
- Status
- Historical
- Formula
- PbO
- Similar materials
- Lead Bisilicate Frit (Potclays 2261) , Lead Sesquisilicate Frit (Potclays 2262)
- Source
- Theoretical formula
Toxic heavy metal. Serious hazard from dust, can leach into solutions. Trace amounts can cause behavior changes in children and hamper learning.
Oxide analysis and unity formula
Glazecalc has the analysis of Litharge as moles of each fired oxide per formula. The unity contribution is the moles of each oxide in the amount of Litharge that holds 1.0 mole of flux, which is how Glazecalc adds it into a recipe's unity formula.
| Oxide | Moles | Unity contribution |
|---|---|---|
| PbO | 1 | 1.000 |
- Equivalent weight
- 223.2
- Fired weight
- 223.2
- Loss on ignition
- 0%
The equivalent weight is the grams of Litharge that hold 1.0 mole of flux. The fired weight is what is left of that after firing.
Hazards and safety
This material contains lead oxide (PbO).
Hazards: Danger (Carl Roth SDS, lead(II) oxide): H302+H332 harmful if swallowed or inhaled; H351 suspected of causing cancer; H360Df may damage the unborn child; H362 may harm breast-fed children; H372 damages kidneys, nervous system and blood-forming system; H410 very toxic to aquatic life.
Use it in a recipe
Add Litharge to a recipe in the Glazecalc calculator to see what it does to a glaze's unity formula.